Datasheet Microchip 48L640

48L640
64-Kbit SPI Serial EERAM
Serial SRAM Features Package Types (not to scale) • Unlimited Reads/Unlimited Writes:
-Standard serial SRAM protocol
-Symmetrical timing for reads and writes
• SRAM Array:
-8,192 x 8 bit
• High-Speed SPI Interface:
-Up to 66 MHz
-Schmitt Trigger inputs for noise suppression
• Low-Power CMOS Technology:
-Active current: 5 mA (maximum)
-Standby current: 200 μA (at 85°C maximum)
-Hibernate current: 3 μA (at 85°C maximum) 8-Lead SOIC
(Top View) Other Features of the 48L640
• Operating Voltage Range: 2.7V-3.6V
• Temperature Ranges:
-Industrial (I): -40°C to +85°C
• ESD protection: >2,000V 1 8 VCC SO 2 7 HOLD VCAP 3 6 SCK VSS 4 5 SI 8-Pad TDFN
(Top View) Hidden EEPROM Backup Features
• Cell-Based Nonvolatile Backup:
-Mirrors SRAM array cell-for-cell
-Transfers all data to/from SRAM cells in …